User interface for a display screen



FIG. 1 is a front view of a user interface for a display screen showingmy new design; and,

FIG. 2 is a front view of a second embodiment of a user interface for adisplay screen showing my new design.

The broken line showing of the five regions within the claimed area inFIGS. 1 and 2, the indicia in FIG. 2, a device embodying the displayscreen in FIGS. 1 and 2, and the display screen in FIGS. 1 and 2 is forillustrative purposes only and forms no part of the claimed design.

The ornamental design for a user interface for a display screen, asshown and described.